How to add content to Profile Page

Is it possible to create either an I-frame application, using the Toolkit, that gets added to the
Facebook user's profile page or can adding an application only be done though FBML? How do you configure your application to show specific content different from the content that is located at the application page (https://apps.facebook.com/whatever..
)?

You're right, it seems the only way to update your application on the profile page is using FBML. Try using the FBService.SetFBML() method to update your application window in the user's profile - it seemed to work for me although i havent done anything advanced
in that area.